--- (10 headers 0 lines) ---
Really destroying SIP dialog '1ef6d40547e0100e6acc8c9d584a91f0@xxx.xxx.xxx.xxx' Method: OPTIONS
Reliably Transmitting (NAT) to 10.1.50.60:5060:
OPTIONS sip:sipuser16@10.1.50.60 SIP/2.0
Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK3f7592c0;rport
From: "asterisk" <sip:asterisk@xxx.xxx.xxx.xxx>;tag=as6ce753cd
To: <sip:sipuser16@10.1.50.60>
Contact: <sip:asterisk@xxx.xxx.xxx.xxx>
Call-ID: 33328017588542f818c1ff0c4f586a6b@xxx.xxx.xxx.xxx
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Sat, 09 Feb 2008 22:44:37 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0


---
vp0*CLI> no sip debug
<--- SIP read from 10.1.50.60:5060 --->
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK3f7592c0;received=xxx.xxx.xxx.xxx;rport=5060
From: "asterisk" <sip:asterisk@xxx.xxx.xxx.xxx>;tag=as6ce753cd
To: <sip:sipuser16@10.1.50.60>;tag=as36cf0a57
Call-ID: 33328017588542f818c1ff0c4f586a6b@xxx.xxx.xxx.xxx
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Accept: application/sdp
Content-Length: 0